These devices typically require several independent supply voltages, each usually different than the voltage supplied by the battery or external ac-to-dc power supply. Figure 1 shows a typical low-power system
However, as the gate drive voltage in our example is asymmetric (+15V/-4V), more power is needed on the Vgate positive swing than the negative swing. If the power consumption exceeds the capability of a single isolated DC/DC converter, two different stacked converters can be used (Figure ...
Figure 2. Connecting a Shunt Resistor to a Measurement Using this approach, the current is not actually directed into the ammeter/data acquisition board but instead through an external shunt resistor. The largest current you can measure is theoretically limitless, provided the voltage drop across the...
With the maximum di/dt of the load defined, it is possible to set a constraint on the inductor’s maximum value for use in the system. The following equation to determine the inductor value factors in the di/dt of the load and the maximum voltage drop allowed across that inductor during...
Figure 2: The NI 9246 and NI 9247 modules have CTs built into the module, large over-current ratings, and accommodate up to 10AWG wire with ring lugs for higher current measurement. Direct measurements with these modules will be more accurate and with a higher frequency response than using ...
Figure 3 shows the simple implementation of a TVS diode to protect a downstream circuit. Under normal operating conditions, the TVS is high impedance and the input voltage simply passes to the output. When an overvoltage condition occurs at the input, the TVS becomes conductive and responds by...
Next, you need to consider the power that the resistor needs to dissipate. Power dissipation in a resistor can be calculated with the formula where P is power in Watt, V is the voltage drop over the resistor and R is the resistance of the resistor in Ohm. ...
that represents the possible electrical over stress in case of bad or wrong electrical contact during the luminaire assembly or test. The peak as seen on Figure 5 is proportional to the difference between the power supply maximum voltage output without load, and the total forward...
The shunt resister Rsis connected parallel with resistor Ra. Hence the voltage drop across both resisters are equal. Where N is a multiplying power of shunt. How to Build a Shunt Resistor The shunt resister can be built with very thin copper wires. The length and size of the shunt resister...
Each ADC clock produces one bit from result to output. The ADC internal design is based on the switched-capacitor technique. The following figures (Figure 1 to Figure 6) explain the principle of ADC operation. The example given below shows only the first steps of approximation but the...